Bltje-priht machine



G. ARNTZEN BLUE PRINT MACHINE Aug. 2:7, 1929.

@THA/P0 APA/T25 Aug. 27, 1929.

G. ARNTZEN BLUE PRINT MACHINE 3 Sheets-.Sheet Filed June 18, 1926 GoTHA/P0 l :g1/locutor Aug 27, l929- G. ARNTZEN BLUE PRINT MACHINE 5Sheets-Sheet 'A Filed June 18, 1926 F/.GII

Patented Aug. Z7, 1929.

rr fr GOTHARD ARNTZEN, OF ESCANABA, MICHIGAN.

BLUE-PRINT MACHINE.

Application filed June 18,

The present invention has reference to a machine for making blueprints,the primary object of the invention being to provide a machine whichwill make blueprints rapidly and eliiciently, mechanical means beingprovided for moving the tracing paper and printing paper through themachine and delivering the same in a roll in a dried condition.

Another object of the invention is to pr ovide a machine which will becontinuous in its operation, the construction of the machine being suchthat the printing paper and tracing paper will be moved by a suitablelight to cause a print to be made, from where the printed paper iscarried through the various baths necessary to fix the print, from wherethe printed paper is carried through a drier and finally delivereda atthe front of the machine in a roll.

With the foregoing and other objects in view vwhich will appear as thedescription proceeds, the` invention resides in the combination andarrangement of partsand in the details of construction hereinafterdescribed 7 and claimed, it being understood that changes inl theprecise embodiment of the invention herein disclosed, may be made withinthe scope of what is claimed, without departing from the spirit of theinvention.

Referring to the drawings:

Figure 1 is a front elevational view of a machine constructed inaccordance with the invention.

Figure 2 is a side elevational view thereof.

Figure 3 is avertical sectional view through the machine.

Figure 4 is a perspective view illustrating the means for adjusting theglass under which the paper moves. c

'Referring to the drawings in detail, the frame which is indicatedgenerally by the reference character 5 is vertical and provides frontbars 6', rear bars 7 and upper and lower connecting bars 8 and 9respectively.

The rear bars 7 are connected by means of the bars 10, while the frontbars are connected by means of the horizontal bars 11 arranged adjacentto the upper and lower ends thereof.

Positioned within the upper portion of the 50 frame is a curved metalplate 12 that has a downwardly extended rear portion 13 terminating at apoint substantially intermediate the upper and lower ends of the frame.

This plate 12 acts as a support for the tracing paper which in thepresent showing is indicated at 14 and is designed to deliver the 1926K.Serial No. 116,906.

tracing paper in a iiat unwrinkled condition to the tray 15 formed atthe forward end of the plate 12 as clearly shown by Figure 301 thedrawings.

The reference character 16 indicates a sheet of curved glass that formsa lamp compartment with the curved plate 12, the lamp being indicated bythe reference character 17.

Supported directly under the curved glass 16 is a roller 18 which isspaced from the glass to permit the printing paper and tracing paper topass therebetween. Associated with the roller 18 is a roller 19supported adjacent to the forward edge of the glass 16, which rollersprovide a support for the belt 2O that operates under the glass 16 andprovides a support for the paper passed through the machine.

. Operating in conjunction with the rollers 18 and 19 are guide rollers21 and 22 which guide rollers act to hold the paper in an eX- tendedposition for passage through the machine.

Above the plate 12 is a guard plate 23 that has its rear end arrangedadjacent to the guide roll 24 to the end that the printing paper whichpasses over the roll 24 may be separated from the tracing paper 14 tothe end that the printing paper may be passed on through the severalbaths to tix the print.

A substantially long roll 25 is arranged above the roll 24, the roll 25being provided for changing the direction of travel of the printingpaper after it has left the roll 24.

As shown by Figure 3, the tracing paper passes downwardly over the rolls26, 27 28. 29 and 30, which latter rolls guide the printing paperthrough vthe various baths. The reference character 31 indicates a tankwhich is provided with spaced partitions 32 which partit-ions definewater compartments 33 at the ends oi the tanks, and a centralcompartment 34 for containing the developing solution. This tank isprovided with brackets 35 at its ends. which brackets receive one end ofthe cables 36, there being provided brackets 37 at the rear end of thetank for receiving the free ends of the cables 38 that pass over pulleys39 supported directly above the tank.

A shaft 40 extends transversely of the machine adjacent to the forwardportion thereof and has a pulley 41 mounted adjacent to o ne end, and apulley 42 adjacent to the opposite end, which pulleys accommodate thecables 36 which are wound thereon for raising and lowering the tank atthe will of the operator.

A ratchet wheel 43 is mounted on the shaft and is engaged by the pawl 44so that the tank may be held in various positions of adjustment. A crankhandle 45 is removably secured at one end of the shaft 40 and may berotated for rotating the shaft 40 to raise and lower the tank asdescribed.

In order to facilitate the positioning of water in the variouscompartments of the tank, pipes 46 are used, and as shown, extendthrough one of the side walls of the tank, the pipes 46 being incommunication with a suppiy pipe 47 that has a connection with asuitable source of water supply through the fienible pipe 48.

The drying chamber indicated at 49 is arranged directly above the tank,the bottom wall of the drying chamber being provided with an openingthrough which the printing paper passes after it hasleft the tank.Within the drying chamber is a horizontal roll 50 arranged adjacent tothe forward portion thereof, and over which the paper passes. The roll51 is supported adjacent to the rear end ofthe drying chamber andprovides a guide for the paper in guiding the paper throughout thelength of the drying chamber, from where is passes through an openingformed in the front wall 52 of the drying chamber. i

The reference character 53 indicates a guide roll over which the paperpasses on passing from the machine. This guide roll also provides asupport for the endless belts 54 that operate over the rolls 55, 56 and'57, the belts 54 operating as a support for the printed paper 58, andowing to the fact that the endless belts 54 are continuously operating,it will be seen that thepaper will be rolled by its Acontact with thebelt.

Burners indicated at 59 are arranged within the heating chamber andsupply the necessary heat to accomplish the drying of the paper after ithas passed through the baths.

These burners are of the liquid and gaseous fuel type, and receive fuelthrough the pipe 60, the passage of the fuel being controlled by meansof the valves 61.

The machine is operated by means ofthe electric motor 62 which in turnoperates the shaft 68 over which the belts 64 and 65 operate, the belt64 passing over one end of the roll 53 to rotate the same, while thebelt 65 operates over one end of the roll 18 to operate the same.

In order that the paper'may be readily removed or inserted in themachine, the glass p 16 is movable, there being provided a swing' ingarm 66 mounted directly under the forward edge of the glass 16 which armwhen moved to its active position, will act to raise the forward edge ofthe glass elevating the same from its position on the paper. A keeper 67supported on the frame is designed to engage the arm 66 and hold thesame in its operative position until released by the operator.

Mounted on the forward portion of the frame of the machine are thepivoted supports 68 and 69, the support 68 being divided and providedwith shafts 70 to receive the rolls of printing paper that is to be fedthrough the machine, while the support 69 is designed to receive thepaper after it has been printed.

These supports are adapted to be swung from their active -positions asshown by Figure 2 of the drawing to a position adjacent to the front ofthe machine where they will be out of the way of persons passing themachine when the machine is not in use.

I claim:

A blueprint machine including a frame, a heating chamber mounted in theframe, said heating 'chamber being box-like in formation and includingan inclined upper wall defining a wide end and a contracted end, saidbox like heating chamber having a film opening in y the top and a filmopening in the bott-om thereof, a roller positioned in the side end ofthe heating chamber near the top thereof, a roller in the narrow portionadjacent to the bottom thereof and over which the film strip passes, anda heating means within the side end of the heating chamber, under thefirst mentioned roller for heating and drying the film strip. Intestimony that I claim the foregoing as my own, I have hereto affixed mysignature.

GOTHARD ARNTZEN.

